KR20000074115A - Transfor apparatus of protection plate for packing in a strip coil - Google Patents
Transfor apparatus of protection plate for packing in a strip coil Download PDFInfo
- Publication number
- KR20000074115A KR20000074115A KR1019990017832A KR19990017832A KR20000074115A KR 20000074115 A KR20000074115 A KR 20000074115A KR 1019990017832 A KR1019990017832 A KR 1019990017832A KR 19990017832 A KR19990017832 A KR 19990017832A KR 20000074115 A KR20000074115 A KR 20000074115A
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- South Korea
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- plate
- rail
- support
- steel sheet
- coil
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
- B65B27/06—Bundling coils of wire or like annular objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/0223—Heavy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0232—Coils, bobbins, rolls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Of Special Articles (AREA)
Abstract
Description
본 발명은 강판코일의 포장용 보호판 이송장치, 보다 상세하게는 용융도금설비에서 생산되는 강판코일을 포장하기 위하여 포장재가되는 보호판을 작업위치로 이송시킬 때 자동으로 수행함에 따라 작업부하를 감소시키고 안전사고의 발생을 방지할 수 있게한 강판코일의 포장용 보호판 이송장치에 관한 것이다.The present invention reduces the work load and safety accidents as the protective plate conveying device for packing the steel sheet coil, more specifically, when automatically transported the protective plate, which is a packaging material to the working position to package the steel sheet coil produced in the hot dip plating equipment The present invention relates to a protective plate conveying device for packaging a steel sheet coil, which can prevent the occurrence of oil.
일반적으로, 제철소의 용융아연도금설비는 가열로(1)를 통과하여 연속적으로 진행되는 강판 스트립(S)이 아연도금조(2)를 거쳐 아연도금된 후 그 상부에 설치된 에어나이프(3)에 의해 스트립에 부착된 아연도금량이 조절된 다음, 냉각장치(도시하지 않음)를 지나면서 냉각시킨 상태에서 다음 공정으로 진행하게 된 것이다.In general, hot-dip galvanizing facilities of steel mills are subjected to an air knife (3) installed on top of a steel strip (S) that is continuously passed through a heating furnace (1) is galvanized through a galvanizing tank (2). The amount of zinc plating attached to the strip is controlled, and then the cooling is performed while passing through a cooling device (not shown).
상기 아연도금조(2)로 통과하여 아연도금이 완료된 스트립은 수요가의 요구에 따라 원하는 중량만큼 출측 권취기(4)에 코일형으로 감게 되며 수요가의 요구량 만큼 감긴 후에는 절단기(5)에서 절단하게 된다.After the zinc plated strip is passed through the galvanizing tank (2), the strip is wound in a coil shape on the exit winding machine (4) by the desired weight according to the demand. Will cut.
권취기(4)에서 감겨진 강판코일(S')은 도 2에서와 같이 콘베이어(6)에 장착된 적치대(6')에 안착된 상태에서 그 측면에 위치한 리프트(7)의 작동암(7')을 동작시켜 강판코일(S')의 내경부로 인입되게 한후 실린더(8)의 동작으로 리프트(7)를 상부로 올라가게 하여 강판코일을 적치대(6')로부터 떨어지게 한다.The steel sheet coil S 'wound on the winder 4 is operated on the side of the lift 7 positioned on its side in a state where it is seated on the mounting base 6' mounted on the conveyor 6 as shown in FIG. 7 ') is operated to be drawn into the inner diameter of the steel sheet coil (S') and then lift the lift (7) to the upper by the operation of the cylinder (8) to drop the steel sheet coil from the loading stand (6 ').
이어서 콘베어(8) 부근에 있는 작업자가 2인 1조가 되어 보호판(9)을 들고 와서 강판코일(S')의 하부에 위치한 적치대(6') 위에 내려놓은 후 실린더(8)를 이용하여 리프트(12)를 하부로 내려오게 하면서 이에 구비된 작동암(7')을 강판코일의 내경부로부터 인출시켜 대기상태를 유지하게 되며, 마무리 작업으로 2인 1조의 작업자가 또한장의 보호판(9)을 운반하여 강판코일의 위에 올려놓고, 밴드를 이용하여 보호판의 외주면을 묶게 됨으로써 강판코일의 포장을 완료하게 된 것이다.Subsequently, the worker near the conveyor (8) becomes a pair of two people, picks up the protective plate (9), puts it down on the loading stand (6 ') located at the lower part of the steel plate coil (S'), and then lifts it using the cylinder (8). While lowering the lower portion (12), the operating arm 7 'provided therein is drawn out from the inner diameter of the steel sheet coil to maintain the standby state. As a finishing work, a pair of workers also removes the protective plate 9 of the sheet. The transport is placed on the steel sheet coil, and the outer peripheral surface of the protective plate is bound using a band to complete the packing of the steel sheet coil.
그러나 상기와 같은 종래의 강판코일 포장방법은 수작업에 의존하여 전체적인 포장공정이 이루어 짐으로써 포장작업에 따른 능률이 매우 저조하였음은 물론 항상 2인 1조의 작업인원을 소요로 하므로 인건비 및 작업부하가 과중한 문제점이 있었고, 특히 무게가 과중한 보호판의 취급 또는 운반과정에서 안전사고의 위험이 높은 문제점도 있었다.However, the conventional steel sheet coil packing method as described above has a very low efficiency due to the packaging work as a whole packaging process is made depending on the manual work, and also requires a pair of two workers, thus causing heavy labor and work load. There was a problem, especially in the handling or transportation of heavy weight protective plates, there was a high risk of safety accidents.
본 발명은 상기와 같은 종래의 강판코일의 포장과정에서 발생되는 문제점을 감안하여 안출한 것으로서, 그 목적은 안전한 상태에서 포장작업을 함과 아울러 작업능률을 향상시킬 수 있는 강판코일의 포장용 보호판 이송장치를 제공함에 있다.The present invention has been made in view of the problems occurring in the packaging process of the conventional steel sheet coil as described above, the object is to protect the packaging plate conveying device of the steel sheet coil to improve the work efficiency while performing the packaging work in a safe state In providing.
이러한 목적을 달성하기 위한 본 발명은, 용융아연도금이 완료되어 콘베이어에 적치되는 강판코일의 일측에 포장용 보호판이 보관된 적재장치로부터 상부측 1장의 보호판을 인출시켜 이송하는 운반수단을 설치하고. 이 운반수단에 의해 이송되어온 보호판을 포장작업 위치로 진입되게 하는 안착수단을 설치함에 따라, 상기 운반수단과 안착수단의 연계된 동작에 의해 신속하고 안전하게 보호판을 포장작업위치로 이송시켜 안전사고의 위험을 방지하고 작업효율을 향상시킴을 특징으로 한다.The present invention for achieving this object is provided with a conveying means for taking out and transporting the protective plate of the upper side from the stacking device in which the protective plate for packaging is stored on one side of the steel sheet coil is hot-dip galvanized is deposited on the conveyor. By installing the seating means for entering the protective plate conveyed by the conveying means to the packaging work position, the risk of safety accident by transferring the protective plate to the packaging work position quickly and safely by the linked operation of the conveying means and the seating means It prevents and improves work efficiency.
도 1은 일반적인 강판 스트립 생산설비를 개략적으로 나타낸 구성도,1 is a schematic view showing a general steel strip production equipment,
도 2는 종래의 보호판 포장상태를 나타낸 예시도,Figure 2 is an exemplary view showing a conventional protective plate packaging state,
도 3은 본 발명의 실시예의 이송장치의 전체구성을 나타낸 사시도,Figure 3 is a perspective view showing the overall configuration of the transfer apparatus of the embodiment of the present invention,
도 4는 상기 이송장치의 운반수단을 발췌한 사시도이다.Figure 4 is a perspective view of the transport means of the transfer device.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 적재장치 11 : 지지판10: loading device 11: support plate
11a : 유도편 12,22,32 : 레일11a: guide piece 12,22,32: rail
13 : 로울러 14,33 : 실린더13: roller 14,33: cylinder
15 : 작동로드 20 : 운반수단15: operating rod 20: vehicle
21 : 이동테이블 23 : 고정대21: moving table 23: fixing table
23a : 지지봉 24 : 흡착판23a: support rod 24: suction plate
25 : 스크류축 25a,26a : 모터25: screw shaft 25a, 26a: motor
26 : 구동휠 27 : 완충스프링26: drive wheel 27: buffer spring
28 : 전자석 30 : 안착수단28: electromagnet 30: mounting means
31 : 협지대31: the belt
62 : 가이드 63 : 레일62: guide 63: rail
64 : 스틸환봉 65 : 전자변64 steel ring 65 electronic valve
66A, 66B : 공기공급관66A, 66B: Air Supply Line
이하, 본 발명의 강판코일의 포장용 보호판 이송장치를 첨부도면을 참조하여 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the protective plate conveying device for packaging of the steel sheet coil of the present invention will be described.
도 3은 본 발명의 실시예의 이송장치의 전체구성을 나타낸 사시도이고, 도 4는 상기 이송장치의 운반수단을 발췌한 사시도로서, 용융아연도금이 완료되어 콘베이어(6)에 적치되는 강판코일(S')의 일측에 포장용 보호판(9)이 적층 보관되는 적재장치(10)와, 이에 보관된 보호판(9)의 상부측 1장을 상향으로 인출시켜 이송하는 운반수단(20)과, 이 운반수단에 의해 이송되어온 보호판을 포장작업 위치로 진입되게 하는 안착수단(30)이 설치되어 있다.Figure 3 is a perspective view showing the overall configuration of the conveying apparatus of the embodiment of the present invention, Figure 4 is a perspective view of the conveying means of the conveying device, the molten zinc plating is completed, the steel sheet coil (S) deposited on the conveyor (S) A stacking device 10 in which the protective plate 9 for packaging is stacked and stored on one side thereof, and a conveying means 20 which draws and conveys one upper side of the protective plate 9 stored thereon upwards, and the conveying means. Seating means 30 is installed to enter the protective plate transported by the packaging work position.
적재장치(10)는 평판형의 보호판(9)이 수평상태로 안착되는 지지판(11)과, 이 지지판(11)을 이동가능하도록 하부에 로울러(13)를 매개로 설치된 레일(12)과, 이 레일(12) 상에서 지지판(11)의 위치를 가변되게 그 일측에 작동로드(15)가 연결된 실린더(14)로 구성되어 있다.The stacking device 10 includes a support plate 11 on which a flat plate-shaped protection plate 9 is mounted in a horizontal state, a rail 12 provided through a roller 13 at a lower portion thereof to move the support plate 11, and It consists of the cylinder 14 connected with the operation rod 15 at one side so that the position of the support plate 11 on this rail 12 may be changed.
상기 지지판(11)의 가장자리에는 보호판(9)의 안착위치를 유도하면서 수직으로 정돈되게 하는 다수의 유도편(11a)이 형성되어 있다.At the edge of the support plate 11, a plurality of guide pieces 11a are formed so as to be vertically aligned while inducing the seating position of the protection plate 9.
운반수단(20)은 상기 적재장치(10)로부터 강판코일(S')의 사이를 왕복하게 설치된 레일(22)에 지지되는 이동테이블(21)과, 이 이동테이블(21)의 하부에 다수의 지지봉(23a)으로 지지되어 있되 저면에 보호판(9)을 흡착하게 다수의 흡착판(24)과 전자석(28)이 구비된 고정대(23)와, 이 고정대(23)를 상부의 이동테이블(21)에 지지된 상태에서 승강되게 모터(25a)의 회전을 직직운동으로 변환하는 스크류축(25)과, 상기 이동테이블(21)을 레일(22) 상에서 이동되게 모터(26a)에 의해 동작되는 구동휠(26)로 구성되어 있다.The conveying means 20 includes a moving table 21 supported by a rail 22 reciprocally installed between the loading device 10 and the steel sheet coil S ', and a plurality of moving tables 21 under the moving table 21. The support bar 23a is supported by a support bar 23a, but has a plurality of adsorptive plates 24 and electromagnets 28 provided thereon to adsorb the protection plate 9 on the bottom thereof, and the support 23 is moved to the upper movable table 21. A screw shaft 25 for converting the rotation of the motor 25a into a linear motion so that the motor 25a is moved up and down in a supported state, and a driving wheel operated by the motor 26a to move the moving table 21 on the rail 22. It consists of 26.
상기 고정대(23)를 현수상태로 지지하는 지지봉(23a)은 고정대의 승강동작에 따른 거리를 유지하게 이동테이블(21)에 관통설치되고, 고정대(23)의 저면에 장착된 흡착판(24)에는 완충스프링(27)이 개재되어 있다.The support bar 23a for supporting the holder 23 in a suspended state is installed through the moving table 21 to maintain the distance according to the lifting operation of the holder, and is provided on the suction plate 24 mounted on the bottom of the holder 23. A shock absorbing spring 27 is interposed.
위에서는 이동테이블(21)을 승강시키는 구동장치가 스크류축(25)으로 된 것을 설명하였으나, 래크형태로 된 것은 물론 와이어 윈치 형태로 된 것도 가능하다.In the above description, the driving device for elevating the moving table 21 is made of the screw shaft 25, but it is possible to form the rack as well as the wire winch.
안착수단(30)은 상기 운반수단(20)에 의해 적재장치(10)로부터 운반되어온 보호판(9)을 지지하는 협지대(31)와, 이 협지대(31)를 강판코일(S')이 적치된 콘베이어로 향하게 안내하는 안내레일(32)과 구동력을 전달하는 실린더(33)로 구성되어 있다.The seating means 30 has a holding plate 31 for supporting the protection plate 9 carried from the stacking device 10 by the carrying means 20, and the holding plate 31 has a steel plate coil S '. It consists of a guide rail 32 for guiding the stacked conveyor and a cylinder 33 for transmitting a driving force.
한편, 적재장치(10)와 안착수단(30)에 구동력을 제공하는 각 실린더(14)(33)는 중앙제어장치(도시하지 않음)의 조작신호에 따라 제어되면서 상호 연계된 동작을 수행하게 된다.On the other hand, each cylinder (14, 33) for providing a driving force to the loading device 10 and the seating means 30 is controlled in accordance with the operation signal of the central control device (not shown) to perform the mutually linked operation .
따라서, 상기와 같은 본 발명은 외부에서 이송되어온 보호판(9)을 하역하여 적재장치(10)에 적재할 때 그 일측에 설치된 실린더(14)를 동작시켜 레일(12) 상에서 적재장치를 이동시켜 최적 위치에서 적재되게 하고, 적재가 완료된 후에는 운반수단(20)의 수직하부측 흡착위치로로 복귀 및 정지되게 하여 운반을 위한 대기상태에 있게 된다.Therefore, the present invention as described above is optimized by moving the loading device on the rail 12 by operating the cylinder 14 installed on one side when unloading the protective plate 9 transported from the outside to load the loading device 10 After the loading is completed, it is returned to the vertical lower side suction position of the transport means 20 and stopped so that it is in the standby state for transport.
이어서 운반수단(20)의 이동테이블(21)에 탑재된 모터(25a)를 구동시켜 스크류축(25)을 하강시킴에 따라 이의 하단에 고정된 고정대(23)가 동시에 하강되면서 그 저면에 장착된 흡착판(24)과 전자석(28)이 보호판(9)에 밀착되고, 이 과정에서 흡착판(24)에 개재된 완충스프링(27)이 완충작용을 하게되어 밀착으로 인한 손상을 방지한다.Subsequently, as the screw shaft 25 is lowered by driving the motor 25a mounted on the moving table 21 of the conveying means 20, the fixed base 23 fixed to the lower end thereof is simultaneously lowered and mounted on the bottom surface thereof. The adsorption plate 24 and the electromagnet 28 are in close contact with the protective plate 9, and in this process, the shock absorbing spring 27 interposed in the adsorption plate 24 has a buffer function to prevent damage due to the close contact.
흡착판(24)의 작용과 전자석(28)의 자력이 가해진 상태에서 스크류축(25)을 상향으로 이동되게 하면, 그 하부의 고정대(23)가 동시에 상승되면서 적재장치(10)의 지지판(11)으로부터 한장의 보호판(9)을 인출시키게 되며, 이와 같은 상태에서 이동테이블(21)에 설치된 모터(26a)를 구동시켜 레일(22)에 미끄럼접합된 구동휠(26)을 회전시킴에 따라 운반수단(20)이 안착수단(30)이 대기중인 상부로 이동되고, 이때 고정대(23)에 장착된 전자석(28)의 자력을 상실되게 함으로써 흡착판(24)으로부터 보호판(9)이 분리되어 안착수단(30)의 협지대(31) 위에 안착된다.When the screw shaft 25 is moved upward in the state where the action of the suction plate 24 and the magnetic force of the electromagnet 28 are applied, the support plate 11 of the loading device 10 is simultaneously raised while the lower fixing base 23 is simultaneously raised. The protection plate 9 is drawn out from the above, and in this state, the motor 26a installed in the moving table 21 is driven to rotate the driving wheel 26 sliding on the rail 22. 20, the seating means 30 is moved to the upper portion of the atmosphere, and at this time, by losing the magnetic force of the electromagnet 28 mounted on the fixed base 23, the protective plate 9 is separated from the adsorption plate 24, the seating means ( 30 is seated on the narrowing 31 of.
그러므로 안착수단(30)의 일측에 설치된 실린더(33)를 동작시켜 안내레일(32) 상에서 협지대(31)를 이동되게 하여 도 2에서와 같이 콘베이어(6)에 장착된 적치대(6')에 보호판(9)을 안착되게 한 후 그 측면에 위치한 리프트(7)의 작동암(7')을 동작시켜 강판코일(S')을 올려놓게 되며, 상기와 같은 운반수단(20)과 안착수단(30)의 연속된 동작에 의해 보호판을 이송시켜 강판코일의 상부면에도 보호판을 위치되게 하여 통상적인 방법으로 포장을 마무리 하게 된다.Therefore, by operating the cylinder 33 installed on one side of the seating means 30 to move the pincer 31 on the guide rail 32 so that the loading stand (6 ') mounted on the conveyor (6) as shown in FIG. After mounting the protective plate (9) to the operating arm (7 ') of the lift (7) located on its side to put the steel plate coil (S'), the transport means 20 and the mounting means as described above The protective plate is transferred by the continuous operation of 30 to place the protective plate on the upper surface of the steel sheet coil to finish the packaging in a conventional manner.
이와 같은 본 발명의 강판코일의 포장용 보호판 이송장치는, 무게가 과중한 보호판을 원격 조작에 의해 자동으로 수행되게 하여 작업효율을 향상시킴과 아울러 작업기피를 방지함은 물론 작업의 안전성을 확보할 수 있는 효과가 있다.Such a protective plate conveying device for packing a steel sheet coil of the present invention, by carrying out the heavy weight of the protective plate automatically by remote operation to improve the work efficiency and to prevent work avoidance as well as to ensure the safety of the work It works.
또한 보호판의 운반작업을 신속하게 함과 아울러 작업인력의 손실을 방지하여 생산성의 향상과 원가를 절감할 수 있는 장점도 있다.In addition, it is possible to speed up the conveyance of the protective plate and to prevent the loss of manpower, thereby improving productivity and reducing costs.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990017832A KR20000074115A (en) | 1999-05-18 | 1999-05-18 | Transfor apparatus of protection plate for packing in a strip coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990017832A KR20000074115A (en) | 1999-05-18 | 1999-05-18 | Transfor apparatus of protection plate for packing in a strip coil |
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Publication Number | Publication Date |
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KR20000074115A true KR20000074115A (en) | 2000-12-05 |
Family
ID=19586207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019990017832A KR20000074115A (en) | 1999-05-18 | 1999-05-18 | Transfor apparatus of protection plate for packing in a strip coil |
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KR (1) | KR20000074115A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020001290A (en) * | 2000-06-27 | 2002-01-09 | 이구택 | Apparatus for transferring sheet sample of strip |
KR20040011869A (en) * | 2002-07-31 | 2004-02-11 | 주식회사 포스코 | An apparatus for moving and stacking steel plate |
KR100544660B1 (en) * | 2001-12-26 | 2006-01-23 | 주식회사 포스코 | A device of processing inner ring for coil |
KR100779576B1 (en) * | 2006-11-17 | 2007-11-28 | 주식회사 포스코 | Sleeve auto supplying apparatus for protecting coil inner part of grain oriented electrical steel sheet |
CN104773559A (en) * | 2015-03-05 | 2015-07-15 | 李景会 | Multi-head automatic incense coiling machine |
-
1999
- 1999-05-18 KR KR1019990017832A patent/KR20000074115A/en not_active Application Discontinuation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020001290A (en) * | 2000-06-27 | 2002-01-09 | 이구택 | Apparatus for transferring sheet sample of strip |
KR100544660B1 (en) * | 2001-12-26 | 2006-01-23 | 주식회사 포스코 | A device of processing inner ring for coil |
KR20040011869A (en) * | 2002-07-31 | 2004-02-11 | 주식회사 포스코 | An apparatus for moving and stacking steel plate |
KR100779576B1 (en) * | 2006-11-17 | 2007-11-28 | 주식회사 포스코 | Sleeve auto supplying apparatus for protecting coil inner part of grain oriented electrical steel sheet |
CN104773559A (en) * | 2015-03-05 | 2015-07-15 | 李景会 | Multi-head automatic incense coiling machine |
CN104773559B (en) * | 2015-03-05 | 2024-02-09 | 李景会 | Multi-head automatic incense coil machine |
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